US3696608A - Non-circular waterproof watchcase - Google Patents

Non-circular waterproof watchcase Download PDF

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Publication number
US3696608A
US3696608A US207412A US3696608DA US3696608A US 3696608 A US3696608 A US 3696608A US 207412 A US207412 A US 207412A US 3696608D A US3696608D A US 3696608DA US 3696608 A US3696608 A US 3696608A
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US
United States
Prior art keywords
circular
bezel
watch
elliptical
case
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US207412A
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English (en)
Inventor
Kanji Miyashita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suwa Seikosha KK
Original Assignee
Suwa Seikosha KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suwa Seikosha KK filed Critical Suwa Seikosha KK
Application granted granted Critical
Publication of US3696608A publication Critical patent/US3696608A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/084—Complete encasings for wrist or pocket watches without means for hermetic sealing of winding stem or crown
    • G04B37/086—Complete encasings for wrist or pocket watches without means for hermetic sealing of winding stem or crown for shaped watches

Definitions

  • a water tight seal between the bezel and the casebody of a non-circular watch is achieved by making the mating parts of the bezel and the watchcase circular in cross-section and by providing a suitable gasket between said mating surfaces.
  • the construction as described, is suitable for elliptical, square and hexagonal watches, among others.
  • Another object of the invention is to provide an improved bezel and case-body seal in a non-circular watch which is suitable for mass production and which is low in cost.
  • a further object of the invention is to provide an improved bezel and case-body seal in non-circular watch, where the watch may beelliptical, or polygonal in shape.
  • the invention accordingly comprises an article of manufacture possessing the features, properties, and the relation of elements which will be exemplified in the article hereinafter described, and the scope of the invention will be indicated in the claims.
  • FIG. 1 is a vertical sectional view through a non-circular watch in accordance with the prior art
  • FIG. 2 is a plan view of the watch of FIG. 1;
  • FIG. 3 is a partial vertical section of a non-circular watch in accordance with the present invention where the section is taken along the line 33 of FIG. 4;
  • FIG. 4 is a plan view of the watch of FIG. 3;
  • FIGS. 5 and 6 are plan views of other embodiments of non-circular watches in accordance with the present invention.
  • FIGS. 3 and 4 The means by which these difficulties are circumvented in accordance with the present invention is shown in FIGS. 3 and 4, where elliptical watchcase indicated generally by the reference numeral 23 has a bezel 24 with an elliptical external surface 25 conforming generally to the shape of elliptical watchcase 23. Bezel 24 also has an elliptical interior surface 26 for receiving elliptical watch glass 27. The watch glass may be sealed to bezel 24 by adhesive.
  • surfaces 25 and 26 of bezel 24 are elliptical, exterior surface 29 of bezel 24 is circular in cross section.
  • interior surface 31 of watchcase 23 is also circular in cross-section.
  • watchcase 23 and bezel 24 are sealed together in a water-proof joint by gasket 32.
  • Gasket 32 may be of a relatively firm plastic or other suitable gasket material.
  • interior surface 33 of bezel 24 is also elliptical carrying out the elliptical motif of the watch itself.
  • Reference numerals 29 and 31 in FIGS. 5 and 6, as in FIGS. 3 and 4 indicate the circular, i.e., cylindrical exterior surface of bezel 24 and the circular, i.e., cylindrical interior surface of case-body 23.
  • the sealing structure of the present invention requires fewer parts than the structures of the prior art, the areas which must be formed with high precision are circular rather than non-circular, resulting in the achievement of greater precision of manufacture at lower cost and in a more effective and longer lived water-tight seal between the bezel and the casebody.
  • the structure in accordance with the present invention is applicable to polygonal watches as well as to elliptical watches.
  • a sealing structure for a noncircular waterproof watch comprising'a non-circular watch glass, a bezel having a non-circular opening in the upper surface thereof for reception of said watch glass, a case-body surrounding and supporting said bezel, said case-body having a cylindrical opening therein; and a circular gasket within said cylindrical opening, said bezel having a cylindrical exterior surface so dimensioned as to

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Joining Of Glass To Other Materials (AREA)
US207412A 1970-12-14 1971-12-13 Non-circular waterproof watchcase Expired - Lifetime US3696608A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11079770 1970-12-14

Publications (1)

Publication Number Publication Date
US3696608A true US3696608A (en) 1972-10-10

Family

ID=14544871

Family Applications (1)

Application Number Title Priority Date Filing Date
US207412A Expired - Lifetime US3696608A (en) 1970-12-14 1971-12-13 Non-circular waterproof watchcase

Country Status (4)

Country Link
US (1) US3696608A (enrdf_load_stackoverflow)
CH (2) CH1816671A4 (enrdf_load_stackoverflow)
GB (1) GB1332957A (enrdf_load_stackoverflow)
HK (1) HK4877A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789606A (en) * 1972-11-20 1974-02-05 Seiko Instr & Electronics Watertight watch case
CN111837455A (zh) * 2018-03-12 2020-10-27 夏普株式会社 显示装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2959912A (en) * 1959-06-19 1960-11-15 Morf Ernest Watch glass for a shaped case
GB915278A (en) * 1959-01-31 1963-01-09 Ernest Morf Watertight non-circular watch case

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB915278A (en) * 1959-01-31 1963-01-09 Ernest Morf Watertight non-circular watch case
US2959912A (en) * 1959-06-19 1960-11-15 Morf Ernest Watch glass for a shaped case

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789606A (en) * 1972-11-20 1974-02-05 Seiko Instr & Electronics Watertight watch case
CN111837455A (zh) * 2018-03-12 2020-10-27 夏普株式会社 显示装置
US11508798B2 (en) * 2018-03-12 2022-11-22 Sharp Kabushiki Kaisha Display device having circular, oval, polygonal frame with opening in bending portion
CN111837455B (zh) * 2018-03-12 2023-06-13 夏普株式会社 显示装置

Also Published As

Publication number Publication date
CH1816671A4 (enrdf_load_stackoverflow) 1976-06-30
CH582378B5 (enrdf_load_stackoverflow) 1976-11-30
HK4877A (en) 1977-02-04
GB1332957A (en) 1973-10-10

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